Mac Alternative MenuBar Icon for Dark Mode

Currently in Settings>Appearance, a menu bar icon can be set for mac computers, called  "ApplicationIconMac22".

This icon looks great in 'light' mode of the Mac OS, but in dark mode, it seems that it is then the only dark icon, instead of flipping to an alternate icon (inversed/lighter color icon).

Please either:

1) Automatically create an inversed color icon for display in dark mode

2) (PREFERRED) Allow designation and upload of an alternative icon to be used when the computer is in dark mode